Industrial Sector Case Studies
Modernisation of the bottle transportation system in the Lammsbräu brewery
Measures
- Energy-efficient drives
- Control technology
- Material transport
Energy Savings
Following its modernisation, the quantity of electricity consumed by the bottle transportation system has fallen by approximately 40% to just 79.5 kWh/day, thanks to energy-saving drives. When compared with traditional solutions, this results in savings of between ¤2,500 and ¤5,000.
Company based in Minden
Measures
- Installation of three new 10 kW piston compressors
Energy Savings
By installing three new 10 kW piston compressors and reducing the mains pressure, the company's compressed air costs have fallen by over 60%. This corresponds to approximately 60,000 kWh of electrical energy per year and a total annual savings of ¤20,000. Since ¤40,000 was invested in the compressors, the payback period is just two years.
Combined renewable energy power plant
Measures
- Combination of 36 wind, solar, biomass and hydraulic power systems in Germany
Energy Savings
A full energy supply through renewable energy alone is achievable. The combined renewable energy power plant connects and controls 36 wind, solar, biomass and hydraulic power plants spread throughout Germany. The biomass and hydraulic systems balance out any fluctuations in wind and solar power. One central control unit connects the individual plants to each other. The combined power plant makes "up-to-the-minute" adjustments to the current requirement.
Research laboratory in Jülich
Measures
- Daylight planning
- Optimised lighting
- Ventilation and heat recovery
- Active cooling
- Renewable and passive cooling
Energy Savings
Following the refurbishment of the research laboratory, 85% of the exhaust air is now used in heat recovery, which at full load can recycle half of the contained heat. When the refurbishment was complete, the primary energy requirement fell by more than half to 600 kWh/m2a.
Further Details
www.enob.info/en/refurbishment/projects/details/juelich-research-laboratory/
Heat recovery deployed in injection moulding production
Measures
- Heat recovery/ process heat
Energy Savings
While taking measures to use energy more efficiently, the company installed a heat pump that deploys the waste heat from mould cooling to supply hot water and to heat the workshops. ¤40,000 was invested, resulting in savings of ¤2.50 per operating hour. This investment can be recouped in just 4 years as there are 4,000 operating hours in each year.
Organic bakery deploying waste heat
Measures
- Heat recovery
- Heat exchangers
Energy Savings
The bakery has installed a heat recovery system that captures waste heat for the purpose of providing hot water and heating. The total system cost ¤33,000 and 47,500 kWh is saved annually as a result of overhauling the system.
Renovation of the Sportiom leisure pool in Den Bosch, the Netherlands
Measures
- Energy-efficient drives
- Pumps
- Control
Energy Savings
By modernising flow regulation through the use of pool valves with speed control, energy costs have fallen by 85% per year, which correspond to annual savings of up to ¤96,000. Therefore, the modernisation costs were recouped after five months.
Modernisation of a refrigeration circuit deployed by a soya milk producer
Measures
- Energy-efficient drives
- Control technology
- Refrigeration
Energy Savings
By replacing the damper control for compressors with speed control, the quantity of energy consumed when providing cooling water has been reduced considerably. The annual savings are in the region of ¤70,000 to ¤90,000. Approximately ¤120,000 was invested and recouped within approximately 16 months.
Print version